waves associated with a moving particle under suitable conditions

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Earn 100

Which of the following is an economic benefit of biodiversity?

50% studentsanswered this correctly

Important Questions on Cell : The Unit of Life

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Biology>Cell : Structure and Functions>Cell : The Unit of Life>Cell - The Unit of Life

If the uncertainty in the position of an electron is

10^{- 10} m,

then the value of uncertainty in its momentum will be _____

kg {ms}^{- 1} . (h = 6.62 \times 10^{- 34} J^{- s})

EASY

Biology>Cell : Structure and Functions>Cell : The Unit of Life>Cell - The Unit of Life

Which is the National Aquatic Animal of India?

EASY

Biology>Cell : Structure and Functions>Cell : The Unit of Life>Cell - The Unit of Life

Matter waves are

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Biology>Cell : Structure and Functions>Cell : The Unit of Life>Cell - The Unit of Life

In Raman scattering, Stokes and Antistokes lines respectively represents lines with ______ and ______ wavelength.

HARD

Biology>Cell : Structure and Functions>Cell : The Unit of Life>Cell - The Unit of Life

Four electrons, each of mass

m_{e}

are in a one dimensional box of size

L

. Assume that, the electrons are non-interacting, obey the Pauli exclusion principle and are described by standing De Broglie waves confined within the box. Define

α = \frac{h^{2}}{8 m_{e} L^{2}}

and

U_{0}

to be the ground state energy. Then,

EASY

Biology>Cell : Structure and Functions>Cell : The Unit of Life>Cell - The Unit of Life

Which one of the following pairs of solution is not an acidic buffer?

EASY

Biology>Cell : Structure and Functions>Cell : The Unit of Life>Cell - The Unit of Life

Addition of sodium hydroxide solution to a weak acid (HA) results in a buffer of pH 6. If ionization constant of HA is

10^{- 5}

, the ratio of salt to acid concentration in the buffer solution will be:

EASY

Biology>Cell : Structure and Functions>Cell : The Unit of Life>Cell - The Unit of Life

Select the correctly written scientific name of mango, which was first described by Carolus Linnaeus.

HARD

Biology>Cell : Structure and Functions>Cell : The Unit of Life>Cell - The Unit of Life

The unifying concept of biology has received its greatest stimulus from the English biologist _____. (Charles Darwin/Thomas Henry Huxley)

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Biology>Cell : Structure and Functions>Cell : The Unit of Life>Cell - The Unit of Life

Which of the following statements is correct?

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Biology>Cell : Structure and Functions>Cell : The Unit of Life>Cell - The Unit of Life

Match the column I with column II; choose the answer which gives the correct combination of the two columns.

Column I	Column II
A. Aristotle	1. Doctor Universalis
B. Carolus Linnaeus	2. Father of English Botany
C. Albert Magnus	3. Father of zoology
D. William Turner	4. Father of taxonomy